9886752981 has 36 divisors (see below), whose sum is σ = 16622396544. Its totient is φ = 5646186000.

The previous prime is 9886752971. The next prime is 9886752989. The reversal of 9886752981 is 1892576889.

It is a happy number.

9886752981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9886752981 - 2¹³ = 9886744789 is a prime.

It is a super-2 number, since 2×9886752981² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9886752989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 854646 + ... + 866136.

Almost surely, 2^9886752981 is an apocalyptic number.

It is an amenable number.

9886752981 is a deficient number, since it is larger than the sum of its proper divisors (6735643563).

9886752981 is a wasteful number, since it uses less digits than its factorization.

9886752981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13462 (or 13452 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 63.

The square root of 9886752981 is about 99432.1526519465. The cubic root of 9886752981 is about 2146.2710181092.

The spelling of 9886752981 in words is "nine billion, eight hundred eighty-six million, seven hundred fifty-two thousand, nine hundred eighty-one".